An exhaust gas treatment device

Abstract

The application discloses a kind of waste gas treatment devices, including fixed plate, the number of fixed plate is two, the opposite side of fixed plate is fixedly connected with fixed block, two fixed plate is symmetrically arranged with fixed block as center, the number of fixed block is multiple, multiple fixed block constitutes multiple gaps, and gap gradually increases from middle to the both ends of fixed plate, and the top of fixed block is chamfered on both sides edge.The application relates to the technical field of waste gas treatment.The waste gas treatment device, the small middle gap can form local throttling, the large gap at both ends is beneficial to the diffusion of gas to both sides, so that the airflow entering the equipment is more evenly distributed on the cross section, avoiding the bias flow, and the annular space of the circular groove provides a reasonable diffusion boundary for the spraying liquid, ensuring that each part of the waste gas can be fully contacted with the spraying liquid, and the dust and soluble pollutants in the waste gas can be more efficiently removed, laying a better foundation for subsequent biological filter treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a waste gas treatment device. BACKGROUND

[0002] The waste gas treatment device is an equipment or system that removes harmful pollutants (such as particulate matter, volatile organic compounds VOCs, sulfides, nitrogen oxides, etc.) contained in waste gas in industrial production, municipal operation, etc. by physical, chemical or biological methods, and makes it meet the national or local emission standards before being discharged. The waste gas treatment method includes physical treatment method, chemical treatment method and biological treatment method. The biological treatment method utilizes the metabolic action of microorganisms to convert harmful substances (such as hydrogen sulfide, ammonia, volatile organic compounds, etc.) in malodorous gas into harmless substances such as water, carbon dioxide, inorganic salts, etc. Its working process can be divided into three core stages: pretreatment, biological filtration and tail gas emission. The stages work together to achieve efficient deodorization.

[0003] The biological filter tank allows aerobic microorganisms such as bacteria to attach to the organic biological mat layer and grow and reproduce, forming a filter layer. The waste gas passes through the filter layer which is wet, porous and full of active microorganisms. Microbial cells have the characteristics of small size, large surface area, strong adsorption and diverse metabolism, which can adsorb, absorb and degrade malodorous substances.

[0004] In the working process of the existing biological filter tank, when the waste gas directly enters the pretreatment unit, the short-circuiting of the gas flow is easy to form due to the simple design of the gas inlet, so that part of the waste gas directly passes through without contacting the spray water, resulting in that the humidity of the waste gas entering the filter tank is lower than 90% (the critical value of microbial activity), causing the filler to dry and the microorganisms to be inactivated. SUMMARY

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: a waste gas treatment device, comprising a box body, a gas inlet pipe is fixedly connected to the top of the box body, a gas flow distributor is fixedly connected to the inside of the box body near one end of the gas inlet pipe, and a filter layer is fixedly connected to the end of the box body away from the gas flow distributor;

[0006] A steam-water separator is connected to the top of the end of the box body away from the gas inlet pipe through a pipeline;

[0007] An exhaust gas treatment tower is fixedly connected to the output end of the steam-water separator through an intermediate pipe;

[0008] The air flow distributor comprises two fixed plates, the opposite sides of the fixed plates are fixedly connected with fixed blocks, the two fixed plates are symmetrically arranged with the fixed blocks as the center, the exhaust gas is introduced into the inside of the shell through the air inlet pipe, so that the exhaust gas enters the interval between the partition plate and the shell, then the exhaust gas flows downward from the bottom through the gap between the two adjacent fixed blocks, and the water inlet pipe is used to introduce water, so that the water in the water inlet pipe enters the inside of the first water pipe, so that the water and the exhaust gas are contacted, the middle gap between the fixed blocks is small, the gap at both ends is gradually increased, the small middle gap can form local throttling, the large gap at both ends is beneficial to the diffusion of the gas to both sides, so that the air flow entering the equipment is more evenly distributed in the cross section, and the partial flow is avoided, and the annular space of the circular groove provides a reasonable diffusion boundary for the spraying liquid, when the first water pipe at the middle position sprays to the surrounding, the spraying liquid can be blocked and reflected by the inner wall of the circular groove, and uniformly cover the whole circular groove section, so that each part of the exhaust gas can be fully contacted with the spraying liquid, the dust and the soluble pollutants in the exhaust gas can be more efficiently removed, or the temperature and humidity can be adjusted, a better foundation is laid for subsequent biological filter treatment, the number of the fixed blocks is multiple, the multiple fixed blocks form multiple gaps, and the gaps are gradually increased from the middle to the two ends of the fixed plate, and the top sides of the fixed blocks are chamfered.

[0009] Preferably, the bottom of the fixed plate is provided with a through hole, the through hole is located at the gap between the two fixed blocks, the number of the through holes is multiple, the multiple through holes are uniformly distributed on the fixed plate, a circular groove is arranged at the middle of the inside of the through hole, the circular grooves are symmetrically arranged on the two sides of the inside of the through hole, the through hole penetrates the two fixed plates along the thickness direction of the fixed plate, the opposite sides of the fixed plate are fixedly connected with V-shaped blocks, the inverted V-shaped blocks serve as the middle flow dividing core, can uniformly guide the air flow entering the gap to both sides, and avoid that the air flow concentrates and impacts a region to form partial flow; the two side inclined plates further receive the air flow after the flow division, guide the air flow to stably flow along the plate surface downward through the inclination angle, and finally make the air flow form an orderly path of middle flow division and two-side flow guiding in the whole gap section, improve the air flow distribution uniformity, and lay a stable foundation for the subsequent treatment link, the V-shaped blocks are arranged in an inverted mode, the V-shaped blocks are located at the interval between the two adjacent fixed blocks, and the side of the fixed block close to the V-shaped block is fixedly connected with an inclined plate, and the inclined plate is symmetrically arranged with the V-shaped block as the center.

[0010] Preferably, the box body comprises a shell, the top of the shell is fixedly connected with the air inlet pipe, the inside of the shell is fixedly connected with a partition plate, a gap exists between the partition plate and the shell, a spraying assembly is arranged in the inside of the shell, the partition plate is located at one end close to the air inlet pipe, the airflow distributor is located at the gap between the partition plate and the shell, the two fixing plates are fixedly connected with the inner wall of the shell and the outer side of the partition plate respectively, the side of the partition plate close to the airflow distributor is fixedly connected with a guide plate, the airflow of the airflow distributor continues to flow downward, part of the gas in the exhaust gas will be liquefied after being humidified and sprayed, at this time, the guide plate utilizes the inclined structure to effectively intercept the liquid drops, after the liquid drops contact the surface of the guide plate, they will flow downward along the surface of the guide plate under the action of gravity, avoiding continuing to move forward with the airflow, at the same time, the bottom baffle avoids the liquid drops entering the path of the subsequent process, further improving the gas-liquid separation efficiency, reducing the liquid amount of the airflow entering the subsequent process, and reducing the corrosion and blockage risk of the subsequent equipment, the inner wall bottom of the shell is fixedly connected with a baffle, the guide plate is inclined, the guide plate is arranged in an inclined direction from the partition plate to the baffle from top to bottom, the baffle is located below the guide plate, the inside of the shell is fixedly connected with a stand plate, the number of the stand plates is multiple, the stand plates are located at the side of the partition plate away from the airflow distributor, the multiple stand plates are uniformly arranged at the gap between the shell and the partition plate, the inside of the shell is fixedly connected with an inclined plate, the stand plate can be used as a flow guiding boundary of the sprayed spraying liquid of the second water pipe, avoiding the spraying liquid spreading to the edge of the equipment to cause waste; the spraying pipes between adjacent stand plates directly spray downward to the filter material layer, which can make the spraying liquid accurately fall into the filter material layer, ensuring that each piece of filter material can be evenly wetted, preventing the local filter material layer from being caused by lack of water to reduce microbial activity, or being caused by excessive water accumulation to affect air permeability, maintaining the overall filter material layer in a humidity environment suitable for microbial survival, guaranteeing stable deodorization effect, at the same time, the reflection of the inclined plate to the spraying liquid further recovers the spraying liquid to the filter material area, improving the utilization rate of the spraying liquid, the number of the inclined plates is multiple, the two inclined plates are divided into a group, the inclined plates of the group are symmetrically arranged with the stand plate as the center, and the inclined plates are arranged in an inclined direction from the top of the stand plate to the middle of the two stand plates from bottom to top.

[0011] Preferably, the spraying assembly comprises a water inlet pipe, the water inlet pipe is located in the inside of the partition plate, the outer side bottom of the water inlet pipe is fixedly connected with a first water pipe, the first water pipe is arranged in an L shape, a hole is formed in the outer side of the first water pipe, the side edge of the end of the first water pipe away from the water inlet pipe is located at the gap between the partition plate and the shell, and the first water pipe is located in the circular groove of the through hole, the number of the first water pipes is multiple, and the multiple first water pipes are uniformly arranged on the water inlet pipe, the outer side of the water inlet pipe is fixedly connected with a connecting pipe, the connecting pipe is arranged perpendicularly to the partition plate, the outer side of the connecting pipe is fixedly connected with a second water pipe, a hole is formed in the outer side bottom of the second water pipe, the second water pipe is arranged perpendicularly to the connecting pipe, the second water pipe is located at the gap between the adjacent two stand plates, and the number of the second water pipes is multiple.

[0012] Preferably, the filter layer comprises intermediate plates, the number of intermediate plates is multiple, the intermediate plates are arranged vertically to the partition plates, the bottom of the intermediate plate is fixedly connected to the bottom of the inner wall of the shell, the two ends of the intermediate plate are fixedly connected to one side of the partition plate and the inner wall of the shell respectively, the top of the intermediate plate is fixedly connected to a positioning block, the opposite side of the intermediate plate is fixedly connected to a trapezoidal block, the humidified waste gas enters the space between the partition plate away from the guide plate and the shell, and then the waste gas enters the space between the multiple intermediate plates, so that the waste gas contacts the filler in the fixed frame through the tapered hole of the positioning block, the waste gas entering the filter layer is uniformly distributed through the airflow distribution structure at the bottom of the positioning block, avoiding airflow concentrated impact on a certain area to form a partial flow, through reasonable opening rate and flow guide angle design, the waste gas passes through the entire filter layer cross section at a smooth and uniform speed, ensuring that each part of the filler can fully contact the waste gas, eliminating the filler area that does not participate in the reaction due to uneven airflow distribution, improving the degradation efficiency of microorganisms on malodorous substances, providing core protection for the overall treatment effect of the filter layer, the number of trapezoidal blocks is multiple, the multiple trapezoidal blocks are evenly arranged on the intermediate plate, the positioning block is internally provided with a tapered hole, the top opening of the tapered hole is large, and the inclined inner wall of the tapered hole can guide the rising malodorous gas, so that the gas is uniformly diffused in a divergent manner when flowing out of the hole, avoiding the situation that part of the filler layer is overloaded due to local airflow concentration, allowing the malodorous gas to fully contact the biofilm on the surface of the filler, providing more sufficient reaction conditions for microbial degradation, indirectly improving the overall deodorization efficiency, reducing the treatment dead angle caused by uneven gas distribution, at the same time, the accumulated liquid generated during the operation of the biological filter tank can flow quickly downward along the inner wall of the tapered hole, avoiding the formation of accumulated water at the top of the plate body, the tapered hole is located between the interval between the adjacent two trapezoidal blocks on one intermediate plate, the top of the positioning block is fixedly connected to a fixed frame, the number of fixed frames is two, the filler is placed in the interval between the two fixed frames, at this time, the top fixed frame and the bracket can fix the filler from above, preventing the filler from floating or shifting due to the upward force of the airflow, ensuring the uniform thickness of the filler layer, avoiding the formation of cavities in a local area to affect the treatment effect, at the same time, the grid holes between the brackets ensure that the waste gas passes through smoothly while reducing the impact of the airflow on the filler layer, maintaining the stability of the internal structure of the filter layer and prolonging the service life of the filler.Meanwhile, the grid structure can constrain the filler from horizontal and vertical directions synchronously, prevent the filler from transverse displacement or longitudinal accumulation due to equipment vibration and air flow disturbance, ensure that the filter material layer always maintains uniform thickness and bulkiness, and provide a stable structural basis for subsequent gas-liquid mass transfer and microbial reaction. The support is provided with a grid, and the support plate bears the weight of the filler on one hand, avoids the compaction of the filler due to its own weight, and prevents the decrease of air permeability through uniformly distributed support points. On the other hand, the support plate is supported by the grid-shaped support, supports the filler at the top, disperses the weight of the filler through the bearing area of the plate surface, avoids the leakage of filler particles from the gap between the supports, and the holes provided on the support plate are optimized in terms of hole diameter and distribution density, can form secondary air distribution cooperation with the bottom air distribution structure, make the air flow enter the filler layer at a more uniform speed and a more dispersed form, improve the contact efficiency of waste gas and the surface microorganisms of the filler, and improve the overall operation stability of the filter material layer. The number of supports is two, and the two supports are located inside the two fixed frames respectively, and the opposite side of the fixed frame close to the positioning block is provided with a plurality of inclined grooves, the plurality of inclined grooves are uniformly distributed at the edge of the fixed frame, one of the fixed frames at the upper side is fixedly connected with a protruding block on the side close to the inclined groove, and the intersection of the supports is fixedly connected with a fixed column. The fixed column and the cylinder serve as the core positioning reference between the upper and lower supports, the opposite side of the conical column is positioned by the sharp cone end and guided by the inclined surface, the upper and lower supports always maintain coaxial, the problems of filter material layer deviation, mispositioning of the spray pipe and the like caused by positioning deviation are avoided, the installation precision of each component of the equipment is ensured, the top of the fixed column is provided with a conical column, the intersection of the supports is fixedly connected with a cylinder, the fixed column and the cylinder are located on the two supports in the vertical direction respectively, the inner wall of the support is fixedly connected with a clamping block, the inside of the support is provided with a support plate, and a plurality of holes are formed in the outer side of the support plate.

[0013] The application provides a waste gas treatment device.

[0014] (1) The waste gas treatment device can form local throttling through the small middle gap, and the large gap at both ends is beneficial to the diffusion of gas to both sides, so that the airflow entering the equipment is more evenly distributed in the cross section, and flow deviation is avoided.

[0015] (2) The waste gas treatment device provides a reasonable diffusion boundary for the spray liquid through the annular space of the circular groove. When the first water pipe at the middle position sprays to the surrounding, the spray liquid can be blocked and reflected by the inner wall of the circular groove, uniformly cover the entire cross section of the circular groove, ensure that each part of the waste gas can fully contact with the spray liquid, and more efficiently remove the dust and soluble pollutants in the waste gas, or complete the temperature and humidity adjustment, and lay a better foundation for subsequent biological filter treatment.

[0016] (Three), the waste gas treatment device, by setting the intermediate plate and the positioning block bottom airflow distribution structure can be evenly distributed to the waste gas entering the filter material layer, avoid airflow concentrated impact a certain area to form the flow, through the reasonable opening rate, the flow angle design, make the waste gas through the whole filter material layer section with smooth, uniform speed, ensure that each part of the filler can fully contact with the waste gas.

[0017] (Four), the waste gas treatment device, by the inclined inner wall of the conical hole can form guiding effect to the rising odor gas, make the gas from the orifice flow out in a divergent uniform diffusion, avoid the local airflow concentration lead to part of the filler layer part load too high, let the odor gas can fully contact with the biological membrane on the surface of the filler, provide more sufficient reaction conditions for microbial degradation, indirectly improve the overall deodorization efficiency, reduce the treatment dead angle caused by uneven gas distribution. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the present application;

[0019] Figure 2 It is the structure schematic view of the present application partly;

[0020] Figure 3 It is the structure schematic view of the present application airflow distributor;

[0021] Figure 4 It is the structure schematic view of the present application airflow distributor partly;

[0022] Figure 5 It is the structure schematic view of the present application box partly;

[0023] Figure 6 It is the structure schematic view of the present application spray assembly;

[0024] Figure 7 It is the structure schematic view of the present application filter material layer;

[0025] Figure 8 It is the structure schematic view of the present application filter material layer partly;

[0026] Figure 9 It is the structure schematic view of the present application filter material layer partly;

[0027] Figure 10 It is the structure schematic view of the present application filter material layer partly;

[0028] In the diagram: 1. Box body; 11. Shell; 12. Partition; 13. Baffle; 14. Guide plate; 15. Vertical plate; 16. Spray assembly; 161. Water inlet pipe; 162. First water pipe; 163. Connecting pipe; 164. Second water pipe; 17. Inclined plate; 2. Air inlet pipe; 3. Tail gas treatment tower; 4. Gas-water separator; 5. Airflow distributor; 51. Fixing plate; 52. Fixing block; 53. Through hole; 54. Circular groove; 55. V-shaped block; 56. Inclined plate; 6. Filter media layer; 61. Intermediate plate; 62. Positioning block; 63. Fixing frame; 64. Protrusion; 65. Trapezoidal block; 66. Conical hole; 67. Fixing column; 68. Cylinder; 69. Support plate; 610. Locking block; 611. Bracket; 612. Inclined groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] First embodiment, such as Figures 1 to 4 As shown, the present invention provides a technical solution: a waste gas treatment device, comprising: a box 1, an air inlet pipe 2 fixedly connected to the top of the box 1, an airflow distributor 5 fixedly connected to the interior of the box 1 near the air inlet pipe 2, and a filter layer 6 fixedly connected to the end of the box 1 away from the airflow distributor 5.

[0031] The steam-water separator 4 is connected to the top of the housing 1 away from the air inlet pipe 2 via a pipe.

[0032] The exhaust gas treatment tower 3 is fixedly connected to the output end of the steam-water separator 4 via an intermediate pipe.

[0033] The air flow distributor 5 comprises two fixed plates 51, the opposite sides of the fixed plates 51 are fixedly connected with fixed blocks 52, the two fixed plates 51 are symmetrically arranged with the fixed blocks 52 as the center, the waste gas is introduced into the inside of the shell 11 through the air inlet pipe 2, so that the waste gas enters the interval between the partition plate 12 and the shell 11, then the waste gas flows downward from the bottom through the gap between the adjacent two fixed blocks 52, and the water inlet pipe 161 is used for water inlet, so that the water in the water inlet pipe 161 enters the inside of the first water pipe 162, so that the water contacts with the waste gas, by gradually increasing the gap between the fixed blocks 52 from the middle to the two ends, the small middle gap can form local throttling, and the large gap at the two ends is beneficial to the diffusion of the gas to the two sides, so that the air flow entering the equipment is more evenly distributed in the cross section, and the partial flow is avoided, and meanwhile, the annular space of the circular groove provides a reasonable diffusion boundary for the spraying liquid, when the first water pipe 162 at the middle position sprays to the four directions, the spraying liquid can be uniformly covered on the whole cross section of the circular groove by the blocking and reflection of the inner wall of the circular groove, so that each part of the waste gas can fully contact with the spraying liquid, the dust and the soluble pollutants in the waste gas can be more efficiently removed, or the temperature and humidity can be adjusted, so that a better foundation is laid for the subsequent biological filter treatment, the number of the fixed blocks 52 is multiple, the multiple fixed blocks 52 form multiple gaps, and the gaps gradually increase from the middle to the two ends of the fixed plate 51, and the top of the fixed block 52 is provided with a chamfer.

[0034] The bottom of the fixed plate 51 is provided with a through hole 53, the through hole 53 is located at the gap between the two fixed blocks 52, the number of the through holes 53 is multiple, the multiple through holes 53 are uniformly distributed on the fixed plate 51, a circular groove 54 is arranged at the inside of the through hole 53, the circular grooves 54 are symmetrically arranged at the two sides of the inside of the through hole 53, the through hole 53 completely penetrates the two fixed plates 51 along the thickness direction of the fixed plate 51, the opposite sides of the fixed plate 51 are fixedly connected with V-shaped blocks 55, the inverted V-shaped blocks 55 serve as the middle flow distribution core, can uniformly guide the air flow entering the gap to the two sides, and avoid the air flow from concentrating on a certain area to form partial flow; the two side inclined plates 56 further receive the air flow after the flow distribution, guide the air flow to stably flow along the plate surface downward through the inclined angle, and finally make the air flow form an orderly path of middle flow distribution and two-side flow guide in the whole gap cross section, improve the air flow distribution uniformity, and lay a stable foundation for the subsequent treatment link, the V-shaped block 55 is arranged in an inverted mode, the V-shaped block 55 is located at the interval between the adjacent two fixed blocks 52, and the side, close to the V-shaped block 55, of the fixed block 52 is fixedly connected with an inclined plate 56, and the inclined plate 56 is symmetrically arranged with the V-shaped block 55 as the center.

[0035] The second embodiment is based on the first embodiment, please refer to Figures 5 to 6As shown, the box body 1 comprises a shell 11, the top of the shell 11 is fixedly connected with the air inlet pipe 2, the inside of the shell 11 is fixedly connected with a partition plate 12, there is a gap between the partition plate 12 and the shell 11, the inside of the shell 11 is provided with a spraying assembly 16, the partition plate 12 is located at one end close to the air inlet pipe 2, the airflow distributor 5 is located at the interval between the partition plate 12 and the shell 11, the two fixing plates 51 are fixedly connected with the inner wall of the shell 11 and the outer side of the partition plate 12 respectively, the side of the partition plate 12 close to the airflow distributor 5 is fixedly connected with a guide plate 14, the airflow of the airflow distributor 5 continues to flow downward, part of the gas in the exhaust gas will be liquefied after being humidified and sprayed, at this time the guide plate 14 utilizes the inclined structure, can form effective interception to the liquid drops, after the liquid drops contact the surface of the guide plate 14, will flow downward along the plate surface under the action of gravity, avoid continuing to move forward with the airflow, at the same time the bottom baffle 13 avoids the liquid drops entering the path of the subsequent process, further improves the gas-liquid separation efficiency, reduces the liquid amount of the airflow entering the subsequent process, reduces the corrosion and blockage risk of the subsequent equipment, the inner wall bottom of the shell 11 is fixedly connected with the baffle 13, the guide plate 14 is inclined, the guide plate 14 is arranged in an inclined direction from the partition plate 12 to the baffle 13 from top to bottom, the baffle 13 is located below the guide plate 14, the inside of the shell 11 is fixedly connected with a vertical plate 15, the number of the vertical plate 15 is multiple, the vertical plate 15 is located at the side of the partition plate 12 away from the airflow distributor 5, the multiple vertical plates 15 are evenly arranged at the interval between the shell 11 and the partition plate 12, the inside of the shell 11 is fixedly connected with an inclined plate 17, the vertical plate 15 can be used as the flow guiding boundary of the sprayed spraying liquid of the second water pipe 164, avoids the spraying liquid diffusing to the edge of the equipment to cause waste; the spraying pipe between adjacent vertical plates 15 directly sprays downward to the filter material layer 6, can make the spraying liquid accurately fall into the filter material layer, ensure that each piece of filter material can be uniformly wetted, prevent the filter material layer 6 from being locally caused by water shortage to cause microbial activity to decrease, or being caused by excessive water accumulation to affect the air permeability, maintain the whole filter material layer 6 in a humidity environment suitable for microbial survival, guarantee the stability of the deodorization effect, at the same time the reflection effect of the inclined plate 17 on the spraying liquid, further recovers the spraying liquid to the filter material area, improves the utilization rate of the spraying liquid, the number of the inclined plate 17 is multiple, the two inclined plates 17 are divided into a group, the inclined plates 17 of the group are symmetrically arranged with the vertical plate 15 as the center, the inclined plate 17 is arranged in an inclined direction from the top of the vertical plate 15 to the middle of the two vertical plates 15 from bottom to top.

[0036] The spraying assembly 16 comprises a water inlet pipe 161 located inside the partition plate 12, a first water pipe 162 fixedly connected to the outer bottom of the water inlet pipe 161, the first water pipe 162 being L-shaped, a hole being formed in the outer side of the first water pipe 162, the side of the end of the first water pipe 162 away from the water inlet pipe 161 being located at the interval between the partition plate 12 and the shell 11, and the first water pipe 162 being located inside the circular groove 54 of the through hole 53, the number of the first water pipes 162 being multiple, the multiple first water pipes 162 being uniformly arranged on the water inlet pipe 161, a connecting pipe 163 fixedly connected to the outer side of the water inlet pipe 161, the connecting pipe 163 being perpendicular to the partition plate 12, a second water pipe 164 fixedly connected to the outer side of the connecting pipe 163, a hole being formed in the outer bottom of the second water pipe 164, the second water pipe 164 being perpendicular to the connecting pipe 163, the second water pipe 164 being located at the interval between two adjacent vertical plates 15, the number of the second water pipes 164 being multiple, the multiple second water pipes 164 being uniformly arranged on the connecting pipe 163.

[0037] The third embodiment is based on the first and second embodiments, and please refer to Figures 7 to 10As shown, the filter layer 6 includes a plurality of intermediate plates 61, which are arranged vertically with the partition plates 12, and fixedly connected at the bottom with the inner wall of the shell 11, at both ends with one side of the partition plate 12 and the inner wall of the shell 11, and at the top with a positioning block 62 and a trapezoidal block 65. The humidified exhaust gas enters the space between the partition plate 12 and the shell 11 away from the guide plate 14 through the baffle 13, and then enters the space between the plurality of intermediate plates 61, so that the exhaust gas contacts the filler inside the fixed frame 63 through the tapered hole 66 of the positioning block 62. The airflow distribution structure at the bottom of the positioning block 62 can uniformly distribute the exhaust gas entering the filter layer, avoiding airflow concentration impacting a certain area to form a bias flow. By reasonably designing the opening rate and flow direction angle, the exhaust gas can pass through the entire filter layer cross section at a smooth and uniform speed, ensuring that each part of the filler can fully contact the exhaust gas, eliminating the filler area that does not participate in the reaction due to uneven airflow distribution, greatly improving the degradation efficiency of microorganisms on malodorous substances, and providing a core guarantee for the overall treatment effect of the filter layer. The plurality of trapezoidal blocks 65 are evenly arranged on the intermediate plate 61. The positioning block 62 has a tapered hole 66 inside, the top opening of which is large, and the inclined inner wall of the tapered hole 66 can guide the rising malodorous gas, making the gas evenly diffuse in a divergent manner when flowing out of the hole, avoiding the situation that part of the filler layer is overloaded due to local airflow concentration, allowing the malodorous gas to fully contact the biofilm on the surface of the filler, providing more sufficient reaction conditions for microbial degradation, indirectly improving the overall deodorization efficiency, reducing the treatment dead angle caused by uneven gas distribution, and at the same time, the accumulated liquid generated during the operation of the biological filter can quickly flow down along the inner wall of the tapered hole 66, avoiding the formation of accumulated water at the top of the plate body. The tapered hole 66 is located between the adjacent two trapezoidal blocks 65 on one intermediate plate 61. The positioning block 62 has a fixed frame 63 fixedly connected at the top. The two fixed frames 63 are arranged symmetrically in the vertical direction, and have a support 611 fixedly connected inside. The grid-shaped support 611 forms a three-dimensional support network in the middle of the fixed frame in a cross structure, which can uniformly disperse the weight of the filler, airflow impact and other external forces to each support point of the fixed frame 63, avoiding deformation or fracture of the support 611 caused by local stress concentration.Meanwhile, the grid structure can constrain the filler from horizontal and vertical directions synchronously, preventing the filler from transverse displacement or longitudinal accumulation due to equipment vibration and air flow disturbance, ensuring that the filter layer always maintains uniform thickness and porosity, providing a stable structural basis for subsequent gas-liquid mass transfer and microbial reaction. The support plate 69 bears the weight of the filler, avoids compaction of the filler due to its own weight, and prevents the decrease of air permeability. On the other hand, the support plate 69 is supported by the grid-shaped support 611, which supports the top filler and disperses the weight of the filler through the bearing area of the plate surface, preventing the filler particles from leaking out of the gap between the support 611. At the same time, the holes on the support plate 69 are optimized in terms of aperture and distribution density, and can form secondary air distribution coordination with the bottom air distribution structure, so that the air flows into the filler layer at a more uniform speed and a more dispersed form, improving the contact efficiency of waste gas and surface microorganisms of the filler, and improving the overall operation stability of the filter layer. The number of supports 611 is two, and the two supports 611 are located inside the two fixed frames 63, respectively. The opposite side of one of the fixed frames 63 near the positioning block 62 is provided with a chute 612. The number of chutes 612 is multiple, and the multiple chutes 612 are uniformly distributed at the edge of the fixed frame 63. The fixed frame 63 located above is fixedly connected with a protruding block 64 on the side close to the chute 612. The intersection of the support 611 is fixedly connected with a fixed column 67. The fixed column 67 and the cylindrical column 68 serve as the core positioning reference between the upper and lower supports 611. The opposite tapered columns ensure that the upper and lower supports 611 always remain coaxial, avoiding problems such as displacement of the filter layer, misalignment of the spray pipe, and ensuring the installation precision of each component of the equipment. The top of the fixed column 67 is provided with a tapered column, and the intersection of the support 611 is fixedly connected with a cylindrical column 68. The fixed column 67 and the cylindrical column 68 are located on the two supports 611 in the vertical direction. The inner wall of the support 611 is fixedly connected with a clamping block 610. The support plate 69 is installed in the support 611. The number of support plates 69 is multiple.

[0038] In use, the exhaust gas passes through the inlet pipe 2 into the inside of the shell 11, so that the exhaust gas enters the space between the partition plate 12 and the shell 11. Then the exhaust gas passes through the gap between the adjacent two fixed blocks 52, and finally flows downward from the bottom through hole 53. At the same time, the water inlet pipe 161 is filled with water, so that the water in the water inlet pipe 161 enters the inside of the first water pipe 162, so that the water contacts with the exhaust gas.

[0039] The air flow continues to flow downward through the air flow distributor 5. Part of the gas in the exhaust gas will be liquefied after humidification and spraying. At this time, the guide plate 14 utilizes the inclined structure to effectively intercept the liquid droplets. After the liquid droplets contact the surface of the guide plate 14, they will flow downward along the surface under the action of gravity.

[0040] The humidified exhaust gas enters the space between the baffle 13 and the partition 12 away from the guide plate 14 side of the shell 11, and then enters the space between the plurality of intermediate plates 61, so that the exhaust gas contacts the filler inside the fixed frame 63 through the tapered hole 66 of the positioning block 62, is discharged from the pipeline into the steam-water separator 4, and finally enters the tail gas treatment tower 3 through the intermediate pipe for treatment, and is then discharged.

[0041] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, preclude the existence of further identical elements in the process, method, article, or apparatus that comprises the recited element.

[0042] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A waste gas treatment device, characterized in that, include: Box (1), the top of the box (1) is fixedly connected to an air inlet pipe (2), the inside of the box (1) near the air inlet pipe (2) is fixedly connected to an airflow distributor (5), and the end of the box (1) away from the airflow distributor (5) is fixedly connected to a filter layer (6). A steam-water separator (4) is connected to the top of the housing (1) away from the air inlet pipe (2) via a pipe. The exhaust gas treatment tower (3) is fixedly connected to the output end of the steam-water separator (4) through an intermediate pipe; The airflow distributor (5) includes a fixed plate (51), there are two fixed plates (51), and fixed blocks (52) are fixedly connected to the opposite sides of the fixed plates (51). The two fixed plates (51) are symmetrically arranged with the fixed blocks (52) as the center. There are multiple fixed blocks (52), and the multiple fixed blocks (52) form multiple gaps. The gaps gradually increase from the middle to both ends of the fixed plates (51). The top two sides of the fixed blocks (52) are chamfered. The bottom of the fixing plate (51) is provided with a through hole (53), the through hole (53) is located in the gap between the two fixing blocks (52), there are multiple through holes (53), the multiple through holes (53) are evenly distributed on the fixing plate (51), a circular groove (54) is provided in the middle of the inside of the through hole (53), the circular groove (54) is symmetrically arranged on both sides of the inside of the through hole (53); The housing (1) includes a shell (11), and a spray assembly (16) is provided inside the shell (11). The spray assembly (16) includes a water inlet pipe (161), and a first water pipe (162) is fixedly connected to the bottom of the outer side of the water inlet pipe (161). The first water pipe (162) is located inside the circular groove (54) of the through hole (53). When the first water pipe (162) in the middle position sprays to all sides, the spray liquid can be evenly covered on the entire cross section of the circular groove (54) by means of the obstruction and reflection of the inner wall of the circular groove (54).

2. The waste gas treatment device according to claim 1, characterized in that: The through hole (53) completely penetrates the two fixing plates (51) along the thickness direction of the fixing plate (51). A V-shaped block (55) is fixedly connected to the opposite side of the fixing plate (51). The V-shaped block (55) is inverted and located at the interval between two adjacent fixing blocks (52). An inclined plate (56) is fixedly connected to the side of the fixing block (52) near the V-shaped block (55). The inclined plate (56) is symmetrically arranged with the V-shaped block (55) as the center.

3. The waste gas treatment device according to claim 1, characterized in that: The top of the housing (11) is fixedly connected to the air intake pipe (2). A partition (12) is fixedly connected inside the housing (11). The partition (12) is located at one end near the air intake pipe (2). The airflow distributor (5) is located at the gap between the partition (12) and the housing (11). Two fixed plates (51) are fixedly connected to the inner wall of the housing (11) and the outer side of the partition (12) respectively. A guide plate (14) is fixedly connected to the side of the partition (12) near the airflow distributor (5). A baffle (13) is fixedly connected to the bottom of the inner wall of the housing (11). The guide plate (14) is inclined. The guide plate (14) is inclined from top to bottom from the partition (12) to the baffle (13). The baffle (13) is located below the guide plate (14).

4. The waste gas treatment device according to claim 3, characterized in that: The shell (11) is fixedly connected to a vertical plate (15). There are multiple vertical plates (15). The vertical plates (15) are located on the side of the partition (12) away from the airflow distributor (5). Multiple vertical plates (15) are evenly arranged at the interval between the shell (11) and the partition (12). The shell (11) is fixedly connected to an inclined plate (17). There are multiple inclined plates (17). Two inclined plates (17) are divided into a group. The group of inclined plates (17) is symmetrically arranged with the vertical plate (15) as the center. The inclined plates (17) are arranged in an inclined direction from the top of the vertical plate (15) to the middle of the two vertical plates (15) from bottom to top.

5. The waste gas treatment device according to claim 4, characterized in that: The water inlet pipe (161) is located inside the partition (12). The first water pipe (162) is L-shaped. The side of the first water pipe (162) away from the water inlet pipe (161) is located in the gap between the partition (12) and the shell (11). There are multiple first water pipes (162), and multiple first water pipes (162) are evenly arranged on the water inlet pipe (161).

6. The waste gas treatment device according to claim 5, characterized in that: A connecting pipe (163) is fixedly connected to the outside of the water inlet pipe (161). The connecting pipe (163) is perpendicular to the partition (12). A second water pipe (164) is fixedly connected to the outside of the connecting pipe (163). The second water pipe (164) is perpendicular to the connecting pipe (163). The second water pipe (164) is located at the interval between two adjacent vertical plates (15). There are multiple second water pipes (164), and multiple second water pipes (164) are evenly arranged on the connecting pipe (163).

7. The waste gas treatment device according to claim 4, characterized in that: The filter media layer (6) includes an intermediate plate (61), and there are multiple intermediate plates (61). The intermediate plates (61) are arranged perpendicularly to the partition (12). The bottom of the intermediate plate (61) is fixedly connected to the bottom of the inner wall of the shell (11). The two ends of the intermediate plate (61) are fixedly connected to one side of the partition (12) and the inner wall of the shell (11), respectively. A positioning block (62) is fixedly connected to the top of the intermediate plate (61). A trapezoidal block (65) is fixedly connected to the opposite side of the intermediate plate (61). There are multiple trapezoidal blocks (65). The multiple trapezoidal blocks (65) are evenly arranged on the intermediate plate (61). A conical hole (66) is opened inside the positioning block (62). The conical hole (66) is located at the interval between two adjacent trapezoidal blocks (65) on an intermediate plate (61).

8. The waste gas treatment device according to claim 7, characterized in that: The top of the positioning block (62) is fixedly connected to a fixing frame (63). There are two fixing frames (63), which are symmetrically arranged in the vertical direction. A bracket (611) is fixedly connected inside the fixing frame (63). There are two brackets (611), which are located inside the two fixing frames (63). A sloping groove (612) is opened on the opposite side of the fixing frame (63) near the positioning block (62). There are multiple sloping grooves (612), which are evenly distributed on the edge of the fixing frame (63). A protrusion (64) is fixedly connected to the side of the upper fixing frame (63) near the sloping groove (612).

9. The waste gas treatment device according to claim 8, characterized in that: A fixed column (67) is fixedly connected to the intersection of the brackets (611), and a cylinder (68) is fixedly connected to the intersection of the brackets (611). The fixed column (67) and the cylinder (68) are respectively located on two brackets (611) in the vertical direction. A locking block (610) is fixedly connected to the inner wall of the bracket (611). A support plate (69) is installed inside the bracket (611), and there are multiple support plates (69).

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